Door stop



March 20, 1956' E. NAFFZIGER 2,739,005

DOOR STOP Filed Feb. 13, 1953 40 I4 35 ,2? A 22 l 22 fi II:

WW 3m United Sitates PatentO DOOR STOP Edwin Naffziger, Kenosha, Wis. Application February 13, 1953, Serial No. 336,747

1 Claim. (Cl. 292-339) for urging the foot of the door stop in frictional engagement with the floor.

Some of the advantages of the invention lie in its simplicity of construction, in its efficient and dependable operation and in its adaptability to economical manufacture.

With the above more important objects and features in view, and such other objects and features as may become apparent as this specification proceeds, the invention consists essentially of the arrangement and construction of parts as illustrated in the accompanying drawings, in

which:

Figure 1 is a perspective view of the invention installed on a door;

Figure 2 is a top plan view of the invention per se;

Figure 3 is an elevational view of the invention; and

Figure 4 is an end view thereof.

Like characters of reference are employed to designate like parts in the specification and throughout the several views.

Referring now to the accompanying drawings in detail, the door stop is designated generally by the reference character 10 and embodies in its construction a substantially J-shaped clamp bracket or plate 12 having a face portion 14 formed integrally with a bottom portion 16 and an upturned flange 18, whereby the clamp bracket may be readily applied to and frictionally sustained in position on the lower edge portion of a door 20, as is best shown in Figure 1.

A pair of transversely spaced ears or lugs 22 are provided at the opposite side edges of the face portion 14 and accommodate a horizontal shaft 24. An arm 26 is provided at one end thereof with a tubular bearing 28 which is mounted on the shaft 24 so that the arm is swingable in a vertical plane. The other end of the arm 26 carries a floor engaging foot 30 which is formed from rubber or similar material and is removably secured to the arm 26 by a fastening element 32.

Resilient means are provided for urging the arm 26 to its downwardly swung position, these means consisting of a substantially U-shaped spring 34 including a pair of aligned coils 36 at intermediate points which are mounted on the shaft 24 at the opposite sides of the hearing 28, while the bight portion 38 of the spring 34 abuts the arm 26. The extremities or ends 40 of the spring 34 engage the face portion 14 of the bracket 12 so that the bight portion 38 of the spring, bearing against the arm 26, urges the arm and the foot downwardly.

It will be apparent from the foregoing that when the device is installed on a door, the foot 30 on the arm 26 will automatically be urged into frictional engagement with the floor, so as to effectively sustain the door in any predetermined position. It will be also apparent that despite the frictional engagement of the foot 30 with the floor, the door will be free to swing in one direction when manual pressure in that direction is applied to the door; However, reverse swinging movement of the door Will be possible only when the arm 26 is raised so as todisengage the foot 30 from the floor.

I It is believed that the advantages and use of the invention will be clearly understood from the foregoing disclosure and, accordingly, further description thereof at this point is deemed unnecessary.

However, since numerous modifications and changes will readily occur to those skilled in the art, it is not desired to limit the invention to the exact construction shown and described, and accordingly all suitable modifications and equivalents may be resorted to, falling within the scope of the appended claim.

What is claimed as new is as follows:

A doorstop including, in combination, a substantially J-shaped bracket for mounting on the lower portion of a door and engageable beneath the lower end thereof, and common means for adjustably and removably securing the bracket on the door and for securing said door against swinging movement, said means comprising an arm hingedly mounted for vertical swinging movement on the bracket and engageable with a fioor therebeneath, and a spring on the bracket engaged with the arm for yieldingly urging said arm downwardly on the floor and through said arm, for yieldingly urging the bracket upwardly against the door.

References Cited in the file of this patent UNITED STATES PATENTS 726,577 Schick Apr. 28, 1903 885,116 Whipple Apr. 21, 1908 958,959 Hamilton May 24, 1910 1,163,478 Snow Dec. 7, 1915 1,194,628 Hist Aug. 15,1916 1,334,399 Porter Mar. 23, 1920 1,858,711 Lane May 17, 1932 2,595,709 Sands May 6, 1952 'Patented Mar. 20, 1956 

